1.
If
y
varies inversely as
x
and
y
= 15 when
x
= 3, find
y
when
x
= 9.
A.
3
B.
5
C.
45
D.
15
Hint
2.
Which of the following is not an example of inverse variation?
A.
the number of samples a store can give away if they give 1 free sample to each of 300 people, or decide to give 2 samples to 300 people
B.
the number of computers a company gives if it has enough computers to give 24 people 1 computer, or 12 people two computers
C.
the distance covered if several different people drive 200 miles to the game at variable speeds
D.
the number of running plays a football team can run if they elect to use 2 running backs for 8 plays each, or 1 running back for 16 plays
Hint
3.
Coach Rodney has just enough money that he can buy 11 football uniforms for $80 each. But if he decides to instead coach baseball, those uniforms cost $120 each. What is the maximum amount of uniforms that he would be able to buy, assuming he stays within his budget?
A.
7 uniforms
B.
17 uniforms
C.
8 uniforms
D.
16 uniforms
Hint
4.
If
x
varies inversely as
y
and the constant of variation is 24, what are
x
and
y
if it is true that
x
+
y
= 11?
A.
–3 and –8
B.
3 and 8
C.
–6 and –4
D.
6 and 4
Hint
5.
If
y
varies inversely as
and
y
= 4 when
x
= 6, find
y
when
x
= 8.
A.
9
B.
C.
D.
Hint